Chain and button for pumps.



PATENTED MAR. 21, 1905. J. F. WILLIAMSON.

CHAIN AND BUTTON FOR PUMPS.

APPLICATION FILED JULY 11 1904 NITED STATES Patented March 21, 1905.

PATENT OFEIcE.

CHAIN AND BUTTON FOR PUIVIP S.

SPECIFICATION forming part of Letters Patent No. 785,140, dated March21, 1905. Ap lication fil d July 11, 1904. Serial No. 216,003.

To all whom it may concern:

Be it known that I, J AOOB F. WILLIAMSON, a citizen of the UnitedStates, residing at St. Louis, State of Missouri, have invented certainnew and useful Improvements in Chains and Buttons for Pumps, of whichthe following is a specification containing a full, clear, and exactdescription, reference being had to the accompanying drawings, forming apart hereof. F

My invention relates to improvements in chains and buttons for pumps;and it consists of the novel features herein shown,described, andclaimed.

In the drawings, Figure 1 is a perspective showing a piece of chain anda button. Fig. 2 is a perspective of the pump-head and chain. Fig. 3 isa vertical sectional detail of the parts shown in Fig. 1.

Referring to the drawings in detail, my improved chain and buttoncomprises the buttonbody 5, which is substantially pear-shaped inelevation, there being an annular groove 6 around the largest part ofthe body and there being a pocket 7 formed from the upper end of thebody, the rubber gasket 8 removably mounted in the annular groove 6, thechainlink 9 extending througlithe body 5, one eye of the chain beingbelow the body 5, the other eye of the chain being in the pocket 7, soas to mount the body 5 upon the chain, and the chain-link 1O connectingthe chain-links 9 together, there being a pocket 11 formed down- Ivardlyin the upwardly-extending end of the ink.

The chain is mounted in the pump-head 12 in the ordinary way to beoperated by the crank 13. The chain and buttons pass upwardly throughthe tube to carry Water toth'e discharge-spout 14:, and as the crank isoper ated to operate the chain the pockets 7 and 11 will be filled withwater and will be carried upwardly through the water-chamber 15, overthe sprocket-wheel 16, and will be discharged back into the well orcistern. Then as the empty pockets descend into the water they I will befilled with air and this air will be carried downwardly to the bottom ofthe water, and as soon as the pockets are turned right side up the airwill be discharged into the water.

The principal object of my invention is to aerate and purify the water,and this process is performed by discharging the water from the pocketsback into the well or cistern through the air and by carrying thepockets full of air down into the bottom of the Water and discharging itinto the water.

Another feature of great importance in my invention is the removablegasket. When these gaskets become worn, a link of the chain may beopened, the worn gaskets removed, and new ones supplied.

The gaskets are flat on the bottom and have substantially vertical wallsextending upwardly from the bottom, and the upper sides of the gasketsare round, as shown in crosssection in Fig. 3. I claim In a chain andbutton for pumps: the button-body 5 pear-shaped in elevation and havingan annular groove 6 around its upper end and largest diameter, and therebeing a pocket 7 extending downwardly from its upper end; the rubbergasket 8 mounted in the groove 6; said gasket being flat on its bottomand having a substantially vertical inner wall and the upper sides ofthe gasket being rounded; the chain-link 9 extending through the body 5,the upper eye of the chain-link being in the pocket 7 and the lower eyeof the chain-link being below the body and the chain-link 10; therebeinga pocket 11 extending downwardly -in the'upwardly-extending end ofthe link 10;

substantially as specified.

In testimony whereofl have signed my name to this specification inpresence of two subscribing Witnesses.

JACOB F. WILLIAMSON.

Witnesses:

ALFRED A. EIoKs, F. (J. Cinema.

